The Mount Sinai Health System offers you one of the largest groups of dermatologists in the nation. Our dermatology specialists provide our patients comprehensive care to treat all common as well as rare skin conditions affecting the skin, hair, and nail—whether acute (severe and sudden), chronic (long-lasting, or life threatening. We have been at the forefront of developing new treatments for many dermatologic diseases and disorders, including skin cancers, pre-cancerous skin lesions, psoriasis, and pigment disorders.